Steel grating load peev xam xam yog ob qho tib si tseem ceeb tshaj plaws thiab feem ntau yuam kev -nruj nam ntawm engineering tsim. Tsawg peev xwm ua rau deflection lossis vau, tsim kom muaj kev nyab xeeb; overestimated muaj peev xwm ua rau tsis tsim nyog kev siv nyiaj ntau tshaj - cov khoom tshwj xeeb. Los ntawm tus kws tshaj lij txoj kev xav, tsab xov xwm no qhia txog 3 txoj hauv kev suav cov tswv yim-yooj yim kom meej- ua kom muaj kev txiav txim siab tseeb hauv txhua qhov xwm txheej.

Method 1: Reference Table Method-Txoj kev nrawm tshaj plaws thiab siv tau tshaj plaws

Rau cov ntawv thov txheej txheem, ncaj qha kev sab laj cov rooj muaj peev xwm yog txoj kev ceev tshaj plaws. Hauv qab no yog ib lub rooj siv rau cov kub dip galvanized steel grating nyob rau hauv uniformly faib loads (raws li yooj yim kev txhawb nqa beam qauv, kev ruaj ntseg yam 1.5):

**Cov Lus Qhia Tshwj Xeeb Load Capacity Reference (Uiformly Distributed Load, Unit: kN/m²)**

| Specification|Ntev 600mm|Ntev 900mm|Ntev 1200mm|Ntev 1500mm |

|---------|----------|----------|-----------|-----------|

| G253/30/100 | 18.5 | 9.8 | 6.2 | 4.1 |

| G303/30/100 | 28.6 | 14.2 | 8.5 | 5.8 |

| G323/30/100 | 32.1 | 16.8 | 10.2 | 7.0 |

| G404/30/100 | 56.2 | 28.5 | 16.8 | 11.2 |

| G505/30/100 | 88.5 | 45.2 | 26.8 | 18.0 |

| G505/30/50 | 92.0 | 47.5 | 28.5 | 19.2 |

** Yuav siv li cas **:

Txiav txim siab koj qhov kev xav tau tiag tiag (kN / m²) thiab qhov tseeb ncua (mm)

Nrhiav qhov tsawg tshaj plaws specification nyob rau hauv lub rooj uas ua tau raws li qhov yuav tsum tau load

Qhov kev qhia tshwj xeeb ntawd yog koj qhov kev xaiv pom zoo

** Ceeb Toom **: Cov no yog cov nqi siv. Tej yaam num tiag tiag yuav tsum raug txheeb xyuas los ntawm tus kws tsim qauv tsim qauv.

Txoj Kev 2: Kev suav yooj yim-Kev nkag siab cov ntsiab lus rau kev kwv yees ceev

Thaum cov ntxhuav tsis muaj lossis xav tau kev kwv yees sai, siv cov qauv yooj yim.

Simplified xam nyob rau hauv Uniform Load

Steel grating load xam simplifies rau "sib npaug beam" qauv:

**Basic formula**:

```

q = n × σ × W / (L × S × K)

```

Qhov twg:

q=tso cai load (kN/m²)

n=tus naj npawb ntawm cov kabmob ib 'meter' dav (= 1000 / bar nrug)

σ=tso cai rau kev nyuaj siab (155 MPa rau Q235 steel)

W=seem modulus ntawm ib lub bar (= b × t²/6, qhov twg b=bar dav, t=bar thickness)

L=ncua (mm)

S=bar nrug (mm)

K=yam kev nyab xeeb (feem ntau 1.5)

**Kev suav piv txwv**:

G323/30/100, ncua 1200mm:

n=1000/30=33.3 bars/m

W=32×3²/{2}} mm³

q = 33.3 × 155 × 48 / (1200 × 30 × 1.5)

Kev suav cov lej ntau dua yuav tsum suav nrog rau kev sib koom ua ke ntawm kev sib koom ua ke thiab tag nrho cov phaj coj tus cwj pwm -chaw tsim khoom- muab cov ntaub ntawv thauj khoom yuav tsum yog tus qauv siv.

Kev ntsuas ceev ceev ntawm tus ntiv tes xoo

Rau cov pa steel grating siv Q235 steel, ib txoj cai yooj yim siv tau:

** Tso cai tsis tu ncua load ≈ Bar hla - seem cheeb tsam × Tso cai kev ntxhov siab / (Span × Safety factor)**

Thaum ntxhib, cov qauv no muab ib qho kev txiav txim - ntawm - qhov ntsuas qhov loj hauv 30 vib nas this, pab koj sai sai tshem tawm cov ntsiab lus tsis tsim nyog.

Txoj Kev 3: Kev Xam Xaj -Ua tiav Kev Tshawb Fawb suav nrog Deflection

Hauv kev tsim vaj tsev tiag tiag, kev ua kom muaj zog txaus ib leeg yog qhov tsis txaus -deflection (deformation) kuj yuav tsum tau txheeb xyuas. Steel grating tso cai deflection yog feem ntau ncua / 200.

Deflection Calculation Formula

```

δ = 5 × q × L⁴ / (384 × E × I × n)

```

Qhov twg:

δ=siab tshaj deflection (mm)

q=tsis tu ncua load (N/mm)

L=ncua (mm)

E=modulus ntawm elasticity (206,000 MPa rau Q235 steel)

Kuv=lub sij hawm ntawm inertia ntawm ib qho bar (= b×t³/12)

n=tus naj npawb ntawm bar ib 'meter' dav

**Deflection verification condition**: δ Tsawg dua lossis sib npaug L/200

** Ua kom tiav kev suav ua haujlwm **:

Txiav txim siab cov neeg sib tw tshwj xeeb raws li cov qauv muaj zog

Tshawb xyuas deflection ntawm cov neeg sib tw nyob rau hauv qhov tseeb load

Yog tias deflection tshaj qhov txwv, xaiv qhov loj dua

Rov ua cov kauj ruam 2-3 kom txog thaum cov kev cai deflection tau ua tiav

Concentrated Load xam

Thaum cov hlau grating nqa cov khoom hnyav (xws li cov cuab yeej taw lossis lub log), qhov kev suav sib txawv:

```

P = 4 × σ × W / (L × K)

```

Qhov twg P yog qhov tso cai rau concentrated load (N).

Hauv kev xyaum, cov khoom hnyav thiab cov khoom hnyav tuaj yeem sib koom ua ke, yuav tsum muaj kev txheeb xyuas ua ke siv txoj cai superposition.

Lwm yam cuam tshuam rau Load Capacity

Cov txheej txheem saum toj no sawv cev theoretical suav nrog hauv cov xwm txheej zoo tagnrho. Qhov tseeb load peev yog ntxiv cuam tshuam los ntawm:

** Kev tsim khoom kam rau ua **: Flat bar thickness deviations, vuam zoo

** Kev Pabcuam ib puag ncig**: Corrosive ib puag ncig txo tus ntoo khaub lig-section, txo peev xwm

** Kev txhim kho zoo **: Txawm hais tias kev txhawb nqa yog qib, seb kev kho puas ruaj ntseg

**Dynamic loads**: Forklift tsheb tsim muaj kev cuam tshuam uas yuav tsum tau muaj kev nyab xeeb ntxiv

Cov ntsiab lus

Steel grating load peev xwm xam muaj peb txoj hauv kev los ntawm yooj yim mus rau complex: cov lus siv cov txheej txheem suits ceev txheem xaiv; txoj kev suav yooj yim ua haujlwm rau cov engineers xav tau ceev ceev ntawm -site kwv yees; cov txheej txheem kev suav cov lej ua haujlwm tseem ceeb hauv kev tsim qauv kev tshawb fawb. Tsis hais txog ntawm txoj kev, qhov kev pabcuam tiag tiag thiab kev teeb tsa yuav tsum tau txiav txim siab. Hebei Richen (TAIRICHEN) cov kws tshaj lij pab neeg muab kev suav cov peev txheej thiab cov lus pom zoo xaiv raws li kev ua haujlwm tshwj xeeb - kev sab laj txais tos txhua lub sijhawm.

Rau steel grating lossis hlau mesh cov khoom hais, thov xa email rau sales@rcgrating.com lossis ntxiv WhatsApp +86 131 7176 3332. TAIRICHEN cov kws tshaj lij pab neeg muab cov lus qhia tshwj xeeb pub dawb thiab cov nqi daws teeb meem.